Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties
Multifunctional reinforced polymer composites provide an ideal platform for next-generation smart materials applications, enhancing matrix properties like electrical and thermal conductivity. Reinforcements are usually based on functional metal alloys, inorganic compounds, polymers, and carbon nanom...
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MDPI AG
2025-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/10/5708 |
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| author | Stefano Guarino Emanuele Mingione Gennaro Salvatore Ponticelli Alfio Scuderi Simone Venettacci Vittorio Villani |
| author_facet | Stefano Guarino Emanuele Mingione Gennaro Salvatore Ponticelli Alfio Scuderi Simone Venettacci Vittorio Villani |
| author_sort | Stefano Guarino |
| collection | DOAJ |
| description | Multifunctional reinforced polymer composites provide an ideal platform for next-generation smart materials applications, enhancing matrix properties like electrical and thermal conductivity. Reinforcements are usually based on functional metal alloys, inorganic compounds, polymers, and carbon nanomaterials. The latter have drawn significant interest in developing high-performance smart composites due to their exceptional mechanical, electrical, and thermal properties. The increasing demand for highly complex functional structures has led additive manufacturing to become a reference technology for the production of smart material components. In this study, laser sintering technology was adopted to manufacture nano-graphite/nylon-12 composites with a carbon-based particle reinforcement content of up to 10% in weight. The results showed that the addition of the filler led to the fabrication of samples that reached an electrical conductivity of around 4·10<sup>−4</sup> S/cm, in contrast to the insulating behavior of a bare polymeric matrix (i.e., lower than 10<sup>−10</sup> S/cm), while maintaining a low production cost, though at the expense of mechanical performance under both tensile and bending loads. |
| format | Article |
| id | doaj-art-ac449797122849ea822db3c3ff703613 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-ac449797122849ea822db3c3ff7036132025-08-20T01:56:25ZengMDPI AGApplied Sciences2076-34172025-05-011510570810.3390/app15105708Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical PropertiesStefano Guarino0Emanuele Mingione1Gennaro Salvatore Ponticelli2Alfio Scuderi3Simone Venettacci4Vittorio Villani5Department of Engineering, University Niccolò Cusano, Via Don Carlo Gnocchi, 3, 00166 Rome, ItalyDepartment of Economics, Engineering, Society, and Business Organization, University of Tuscia, Via del Paradiso, 47, 01100 Viterbo, ItalyDepartment of Engineering, University Niccolò Cusano, Via Don Carlo Gnocchi, 3, 00166 Rome, ItalyDepartment of Engineering, University Niccolò Cusano, Via Don Carlo Gnocchi, 3, 00166 Rome, ItalyDepartment of Engineering, University Niccolò Cusano, Via Don Carlo Gnocchi, 3, 00166 Rome, ItalyDepartment of Engineering, University Niccolò Cusano, Via Don Carlo Gnocchi, 3, 00166 Rome, ItalyMultifunctional reinforced polymer composites provide an ideal platform for next-generation smart materials applications, enhancing matrix properties like electrical and thermal conductivity. Reinforcements are usually based on functional metal alloys, inorganic compounds, polymers, and carbon nanomaterials. The latter have drawn significant interest in developing high-performance smart composites due to their exceptional mechanical, electrical, and thermal properties. The increasing demand for highly complex functional structures has led additive manufacturing to become a reference technology for the production of smart material components. In this study, laser sintering technology was adopted to manufacture nano-graphite/nylon-12 composites with a carbon-based particle reinforcement content of up to 10% in weight. The results showed that the addition of the filler led to the fabrication of samples that reached an electrical conductivity of around 4·10<sup>−4</sup> S/cm, in contrast to the insulating behavior of a bare polymeric matrix (i.e., lower than 10<sup>−10</sup> S/cm), while maintaining a low production cost, though at the expense of mechanical performance under both tensile and bending loads.https://www.mdpi.com/2076-3417/15/10/5708graphite nanoplateletspolyamide 12composite materialadditive manufacturinglaser sinteringelectrical conductivity |
| spellingShingle | Stefano Guarino Emanuele Mingione Gennaro Salvatore Ponticelli Alfio Scuderi Simone Venettacci Vittorio Villani Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties Applied Sciences graphite nanoplatelets polyamide 12 composite material additive manufacturing laser sintering electrical conductivity |
| title | Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties |
| title_full | Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties |
| title_fullStr | Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties |
| title_full_unstemmed | Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties |
| title_short | Laser Sintering of Nano-Graphite-Reinforced Polyamide Composites for Next-Generation Smart Materials: A Preliminary Investigation of Processability and Electromechanical Properties |
| title_sort | laser sintering of nano graphite reinforced polyamide composites for next generation smart materials a preliminary investigation of processability and electromechanical properties |
| topic | graphite nanoplatelets polyamide 12 composite material additive manufacturing laser sintering electrical conductivity |
| url | https://www.mdpi.com/2076-3417/15/10/5708 |
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